SI3402-B-GMR | Skyworks Solutions Inc.

Power Switch, SI3402-B-GMR, Silicon Laboratories

The Si3402 integrates all power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD) application. The Si3402 converts the high voltage supplied over the 10/100/1000BASE-T Ethernet connection into a regulated, low-voltage output supply. The optimized architecture of the Si3402 minimizes the solution footprint, reduces external BOM cost, and enables the use of low-cost external components while maintaining high performance. The Si3402 integrates the required diode bridges and transient surge suppressor, thus enabling direct connection of the IC to the Ethernet RJ-45 connector

Features

• Pin-compatible replacement for the obsolete Si3402-A
• IEEE 802.3 standard-compliant solution, including pre-standard (legacy) PoE support
• Incorporates switcher EMI reduction techniques.